@misc{indiciae6a98f25ccf0c,
  title = {Harnessing the earthworm; a practical inquiry into soil-building, soil-conditioning and plant nutrition through the action of earthworms — Illustration, BHL page 41247012},
  year = {1948},
  url = {https://www.biodiversitylibrary.org/page/41247012},
  note = {Source identifier: page-41247012}
}